Sierra International 69724P Arctic Twin Engine Add On IB/IO 4 Gauge Set Includes Tach, Oil Press & Water Temp Gauges Sierra 69724P Arctic Twin Engine Add On IB / IO 4 Gauge Set Includes: 68374P - Tachometer / Hourmeter, 68383P - Voltmeter, 68376P - Water Temperature, 68367P - Oil Pressure Before ordering, please verify this is the correct part for your application. For assistance, please call sierra's Tech support at 1-877-663-8396 All sierra parts qualify for and are Covered under sierra's industry leading customer satisfaction Warranty